BQ40Z80EVM-020: Chemistry programming error: 1470

also found other error code. 

Tried to reprogram the FW but failed.

Tried to exit ROM mode but also failed... sent 0x08 cmd, the result is success but still in ROM mode

Hi Team, 

Summary below support need, look forward to your reply. Thanks!

1. 0x08 did not make gauge exit ROM mode.

2. Checksum is not matched during program official FW.

3. CHEM ID program issue.

Hello Kailun,

I will look into this and get back to you as soon as possible.

Regards,

Siddharth

Hi Siddharth, 

May I have your feedback? Thanks!

Hi Siddharth, 

It seems that this device(or EVM) has some issues. It is easy to show communication issue and cannot change any of data flash. I have tried 3 EVM and all encountered this issue. 

Hi Siddharth,

I can sure I am using the latest bqz. But when I tried to program the latest FW,

1. it failed with DF checksum error, it was very odd..

2. And the 0x08 cannot exit ROM mode. The device got stuck.

Hello Kailun,

Can you send me your .srec and your .bqz files as well as a picture of your setup?

Regards,

Siddharth

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/bq40z80_5F00_v0_5F00_04_5F00_build_5F00_5.srechttps://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/4431.4800_5F00_0_5F00_04_2D00_bq40z80.bqz

Hi Siddharth,

Please refer attached file. it was extract from website directly.

Hello Kailun,

The .srec and .bqz files look alright. Could you send me a picture of your setup?

I have tried using these files on my setup and it works as expected.

Regards,

Siddharth